3000 dolphins die, wash up on the coast of Peru as a result of oil companies activitiy

In the past 3 months, over 3000 dead dolphins have been washed ashore on the coasts of Peru, and this worrying trend continues to grow. So far, the average is about 30 per day, but a significant growth has been reported in the past few days.

While dead dolphins washing up are not entirely uncommon, the magnitude of this event is definitely not natural. According to many biologists, including Peruvian biologist Carlos Yaipen of the Scientific Organization for Conservation of Aquatic Animals, oil companies are to blame in this instance. They believe that acoustic sensing (sonar) is to blame.

“The oil companies use different frequencies of acoustic waves and the effects produced by these bubbles are not plainly visible, but they generate effects later in the animals. That can cause death by acoustic impact, not only in dolphins, but also in marine seals and whales.”

Using this technique is not that uncommon; when on land, oil companies use dynamite or massive trucks to generate seismic waves, which offer valuable information about the underground and the location of a possible reservoir. However, when on sea, these techniques can’t be used, so they use other techniques, including sonars; certain frequencies and intensities can be extremely harmful to the local environment.

In 2003, scientists from the Zoological Society of London proved that underwater sonar can lead to the formation of microscopic bubbles of nitrogen in the bloodstream and vital organs of aquatic mammals, afflicting the animals with a lethal condition commonly known as the Bends. Furthermore, low-range acoustic sensors cause disorientation and even internal bleeding in aquatic mammals.

It is still unclear what company is prospecting in the area as this kind of data isn’t public (of course), but according to Offshore Magazine, a trade publication of petroleum news, at least one entity, Houston-based oil company BPZ Energy, has been actively surveying the seabed along the coast of Peru since the beginning of the year.

Via TreeHugger

3 thoughts on “3000 dolphins die, wash up on the coast of Peru as a result of oil companies activitiy

  1. Nori

    the company behind this is http://www.globalgeophysical.com/Content.aspx?cid=46 this company works all around the world, including the Gulf, Louisianna
     and of course Peru…(this is a multibillion dollar corporation )
    in Lousianna the environmentalists got tired of finding sick and dead dolphins, so they managed to stop the blasting for a few months,until the bottlenose calving season has finished…but not so much luck for the dolphins in Peru…as the blasting continues, and the scientists fall over themselves to find the evidence, most people with careers are happy to conclude that ” we will never know…its the greatest mystery of all time…” yeah right, well its no mystery to those who can put two and two together…heres the article about the situation in Lousianna, http://www.3news.co.nz/Concern-for-dolphins-stops-seismic-tests/tabid/1160/articleID/249158/Default.aspx
    Notice how the president of Global Geophysical, says that even though they have done NO tests to prove this he believes (and so we should have no reason to think he would be lieing..yeah right!) that the blasting has no effect on dolphins,oh..heres his evidence..wait for it…he has seen them bow riding whilst they are in operation…well, anyone who knows anything about dolphins will tell you, if a massive blast is being set off every second..they will swim in the opposite direction..so much  for that hypothosis…maby we should all just conclude that we will never know, its the greatest mystery of out time?…

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